2017 Tesla Model S backover prevention problems

I activated Tesla's Smart Summon feature on the 2017 Tesla Model S to autonomously drive from the parking spot to the front entrance of the restaurant where I was waiting. Pulling out of the spot (my car was back in), the vehicle prematurely turned and contacted the front bumper of the adjacent vehicle (also backed in). My vehicle proceeded for a few feet causing severe damage to my driver side and the other vehicles bumper. I entered my vehicle and pulled away from other vehicle which is still in contact with.

The contact owns a 2017 Tesla Model S. The contact received notification of NHTSA campaign number 21V035000 (Back Over Prevention, Visibility, Exterior Lighting) however, the part to do the recall repair was unavailable. The local dealer was contacted and it was confirmed that the part was not available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had experienced an unstated the failure.